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100,000 RPM High-Cycle Wheelhead

Superprecision 2MMX9101WO-CR bearings produced to ABEC-9 tolerances are spring-loaded in this wheelhead which operates at 100,000 rpm at 1660 cycles. Oil mist lubrication is employed and the motor is water cooled.

Superprecision Lathe Headstock

This lathe spindle produces work held to a roundness of 35 millionths (.000035) of an inch. Maximum operating speed is 4800 rpm. Tandem pair of 3MM9114WI-DUL bearings is opposed by a spring-loaded 3MM9113WI bearing, resulting in excellent spindle rigidity. Bearings are prelubricated with grease.

Precision Vertical Milling Spindle

This spindle operates at 12 different speeds ranging from 260 to 6200 rpm under a wide variety of conditions. At the work end, two duplex pairs of Fafnir 2MM212WI-DUL preloaded bearings are mounted in tandem pairs in a back-to-back arrangement, separated by spacers of equal length. This affords extremely high radial and axial rigidity. At the center, a pair of Fafnir 2MM210WI-DUL bearings mounted back-to- back permit axial float of the spindle to compensate for thermal changes.

The driving pulley shaft is rigidly supported by a widely spaced duplex pair of Fafnir 2MM212WI-DUL preloaded bearings. All bearings are grease packed for life.

102800

ENGINEERING

E47

ENGINEERING

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